Home / 90,377.55-135,603.50-39,750.53

Finding the Fourth Proportional to 90,377.55, 135,603.50 and 39,750.53

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Solution

The fourth proportional to 90,377.55, 135,603.50 and 39,750.53 is: 59,642.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,377.55 : 135,603.50 = 39,750.53 : x
  2. Step 2: Convert to fraction form
    90,377.55/135,603.50 = 39,750.53/x
  3. Step 3: Cross multiply
    90,377.55x = 135,603.50 × 39,750.53
  4. Step 4: Simplify right side
    90,377.55x = 5,390,310,118.08
  5. Step 5: Solve for x
    x = 5,390,310,118.08/90,377.55
  6. Step 6: Final answer
    x = 59,642.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.